Home / 13,912,724.88-19,199,542.68-7,718,711.28

Finding the Fourth Proportional to 13,912,724.88, 19,199,542.68 and 7,718,711.28

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Solution

The fourth proportional to 13,912,724.88, 19,199,542.68 and 7,718,711.28 is: 10,651,811.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912,724.88 : 19,199,542.68 = 7,718,711.28 : x
  2. Step 2: Convert to fraction form
    13,912,724.88/19,199,542.68 = 7,718,711.28/x
  3. Step 3: Cross multiply
    13,912,724.88x = 19,199,542.68 × 7,718,711.28
  4. Step 4: Simplify right side
    13,912,724.88x = 148,195,726,654,957.44
  5. Step 5: Solve for x
    x = 148,195,726,654,957.44/13,912,724.88
  6. Step 6: Final answer
    x = 10,651,811.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.